Miniature rose plant named &#39;KORoragut&#39;

ABSTRACT

A new miniature rose plant which has abundant, orange colored flowers and attractive foliage. The variety successfully propagates from softwood cuttings and is suitable for year round production in commercial glasshouses as a flowering pot plant.

BACKGROUND OF THE NEW PLANT

[0001] The present invention constitutes a new and distinct variety ofminiature rose plant which was developed by artificially pollinating anunnamed seedling (unpatented) with an unnamed seedling (unpatented).

[0002] The objective of the hybridization of this rose variety forcommercial greenhouse culture was to create a new and distinct varietywith:

[0003] 1. Uniform and abundant flowers with good keepability;

[0004] 2. Attractive long lasting foliage and compact growth;

[0005] 3. Year round flowering under glasshouse conditions;

[0006] 4. Suitability for production from softwood cuttings in pots; and

[0007] 5. Durable flowers and foliage which make the variety suitablefor distribution in the floral industry.

[0008] This combination of qualities was not present in previouslyavailable commercial cultivars of this type and distinguish ‘KORoragut’from other varieties.

[0009] The two parents were crossed in the summer of 1999 and theresulting seed was sown in December 1999 in a controlled glasshouseenvironment. The new variety is named ‘KORoragut’. The seeds fromhybridization were planted in a controlled environment in KleinOffenseth, Sparrieshoop, Germany and evaluations were conducted on theresulting plants.

SUMMARY OF THE INVENTION

[0010] Asexual reproduction of ‘KORoragut’ by softwood cuttings wasfirst done in Denmark and later in California in controlled greenhouseenvironments. The characteristics of the new variety remain as true totype through successive propagations.

[0011] The new rose may be distinguished from its seed parent, anunnamed seedling, by the following combination of characteristics:

[0012] 1. ‘KORoragut’ has medium double flowers, while the seed parenthas small double flowers.

[0013] 2. ‘KORoragut’ has orange colored petals, while the seed parenthas light yellow petals.

[0014] The new variety may be distinguished from its pollen parent, anunnamed breeding seedling, by the following combination ofcharacteristics:

[0015] 1. ‘KORoragut’ has smaller flowers and foliage as compared to thepollen parent.

[0016] 2. ‘KORoragut’ has orange colored petals, while the pollen parenthas dark red petals.

[0017] The new variety differs from ‘KORfrauma’, U.S. Plant Pat. No.11,363, as set forth in Table 1: TABLE 1 Petal color, upper surfacePetal color, reverse surface Petal count

DESCRIPTION OF THE DRAWINGS

[0018] The accompanying color illustrations show as true as isreasonably to obtain in color photographs of this type, the typicalcharacteristics of the buds, flowers, leaves, stems of ‘KORoragut’.

[0019] In photo sheet #1:

[0020]FIG. 1 shows a young shoot.

[0021]FIG. 2 shows a bud before opening of the sepals.

[0022]FIG. 3 shows a bud at the opening of the sepals.

[0023]FIG. 4 shows a bud at the opening of the petals.

[0024]FIG. 5 shows a flower during course of opening.

[0025]FIG. 6 shows an open flower, obverse plan view.

[0026]FIG. 7 shows an open flower, reverse plan view.

[0027]FIG. 8 shows a fully open flower, obverse plan view.

[0028]FIG. 9 shows a fully open flower, reverse plan view.

[0029] In photo sheet #2:

[0030]FIG. 10 shows a receptacle with stamens and pistils.

[0031]FIG. 11 shows a receptacle with pistils and stamens removed.

[0032]FIG. 12 shows detached flower petals, outer surface.

[0033]FIG. 13 shows detached flower petals, inner surface.

[0034]FIG. 14 shows a bare stem exhibiting thorns and flower attachment.

[0035]FIG. 15 shows three leaflets, upper side.

[0036]FIG. 16 shows three leaflets, under side.

[0037]FIG. 17 shows five leaflets, upper side.

[0038]FIG. 18 shows five leaflets, under side.

DESCRIPTION OF THE NEW PLANT

[0039] The following is a detailed description of ‘KORoragut’, asobserved in its growth in greenhouses in Fraugde, Denmark, andgreenhouses in Santa Barbara Calif. both at 20-25° C.

[0040] Descriptions were made from plants 11 to 13 weeks old afterpropagation produced in a pot treated with growth regulators normallyused in the greenhouse production process. The growth regulatorPaclobutrazol was applied at 15-30 ppm weekly beginning at a plant ageof 8 weeks. The peduncle lengths mentioned may actually be shorter andthe foliage color several shades darker than on untreated specimens.Color references are made using The Royal Horticultural Society (London,England) Colour Chart, 1995, except where common terms of color areused.

THE PLANT

[0041] Classification:

[0042]Botanical.—Rosa hybrida.

[0043]Commercial.—Miniature.

[0044] Plant growth: Moderately vigorous. Grows compact upright tobushy. When grown as 10 cm pot plant, the average height of the plantitself is 18-20 cm, and average width is 20 cm. When grown as a 15 cmpot plant, the average height of the plant itself is 22-27 cm, andaverage width is 30 cm. Production time is generally 11-13 weeksdepending on average temperature, light level, and cultural practices.

[0045] Stem:

[0046]Color.—Young wood: Yellow-Green Group 146C, with intonations ofGreyed-Red Group 182A. Older wood: Green Group 137C.

[0047]Thorns.—Incidence: High number of thorns. Size: 4-5 mm. Color: RedGroup 49C. Shape: Hooked downwards.

[0048]Surface.—Young wood: Smooth. Older wood: Smooth.

[0049] Stem diameter: 2-3 mm.

[0050] Internode length: 20-25 mm.

[0051] Numbers of internodes: 6-7.

FOLIAGE

[0052] Arrangement: Alternate, compound with 3-7 leaflets per leaf,generally symmetrical, abundant, and flat in aspect. Stipules at petiolebase.

[0053] Quantity of leaves: 6-7 per lateral branch.

[0054] Leaf size:

[0055]Length.—75-80 mm.

[0056]Width.—45-50 mm.

[0057] Petioles:

[0058]Color.—Green Group 137C, with intonations of Greyed-Red Group182A.

[0059]Margin.—With few stipitate glands.

[0060]Length.—5-15 mm.

[0061]Diameter.—About 1 mm.

[0062] Stipules:

[0063]Size.—5-6 mm.

[0064]Surface.—Smooth.

[0065]Color.—Green Group 141D with intonations of Greyed-Red Group 182A.

[0066] Rachis:

[0067]Color.—Green Group 141D with intonations of Greyed-Red Group 182A.

[0068]Margin.—Stipitate glands.

[0069]Length.—10-25 mm.

[0070] Leaflets:

[0071]Margin.—Serrated.

[0072]Serration.—Single.

[0073]Shape.—Ovate with acute apex and obtuse base.

[0074]Texture.—Smooth.

[0075]Appearance.—Dull.

[0076]Size.—Length: 10-35 mm. Width: 5-15 mm.

[0077]Color.—Young foliage: Upper surface: Yellow-Green Group 146A withintonations of Greyed-Red Group 181 A. Lower surface: Yellow-Green Group147C with intonations of Greyed-Red Group 181 A. Mature foliage: Uppersurface: Yellow-Green Group 137A. Lower surface: Greyed-Green Group191A.

INFLORESCENCE

[0078] Blooming habit: Recurrent.

[0079] Number of flowers: Generally 1 bud per flowering stem.

[0080] Peduncle:

[0081]Color.—Green Group 137C.

[0082]Texture.—Dull, with hairs colored in Greyed-Red Group 182A.

[0083]Length.—20-25 mm.

[0084]Form.—Upright.

[0085] Receptacle:

[0086]Surface.—Smooth, glabrous.

[0087]Shape.—Funnel-shaped.

[0088]Size.—Height: 5-6 mm. Width: 5-6 mm

[0089]Color.—Green Group 143C.

[0090]Sepals.—Quantity: 5. Shape: Narrowly ovate with acute tip.Texture: Smooth. Margin: Foliaceous appendages on three of the fivesepals. Appearance: Dull. Color: Upper surface: Yellow-Green Group 152A.Reverse surface: Yellow-Green Group 146C.

[0091] Buds:

[0092]Size upon opening.—Height: 20-25 mm. Width: 15-18 mm.

[0093]Shape.—Ovoid.

[0094]Color.—Red Group 43A when one-fourth open.

[0095] Flower:

[0096]Duration.—As a pot plant, flowers last 14-21 days.

[0097]Fragrance.—Light floral scent.

[0098]Size.—50-55 mm in diameter.

[0099]Form (shape of flower when viewed from the side).—Upon opening:Pointed. Open flower: Cupped.

[0100]Color.—Petals, upon opening: Upper surface: Red Group 43A. Reversesurface: Red Group 43A. Petals, after opening: Upper surface: Red Group44B. Reverse surface: Red Group 44B.

[0101]Basal petal spots.—Size: 1-2 mm. Color: Orange Group 27C.

[0102]General tonality of open flower.—Red Group 40A on fourth dayfading to Red Group 40B.

[0103] Petals:

[0104]Petal reflex.—Generally straight. Outermost petals reflexbackwards.

[0105]Texture.—Smooth and satiny.

[0106]Petal edge.—Uniform.

[0107]Petal count.—Approximately 50-60 per flower.

[0108]Petal size.—Length: 25 mm. Width: 20 mm.

[0109]Shape.—Outer petals: Ovate. Inner petals: Ovate.

[0110]Petaloids.—Generally none.

[0111] Reproductive organs:

[0112]Stamen.—Number: Approximately 60-70 per flower. Pollen: Color:Greyed-Red Group 180A. Abundance: Average. Anthers: Size: 1 mm. Color:Greyed-Red Group 180A with intonations of Greyed-Yellow Group 161A.Shape: Oblong. Abundance: Average. Filaments: Size: 3-4 mm. Color:Greyed-Yellow Group 161A.

[0113]Pistils.—Number: Approximately 30-40 per flower. Stigmas:Location: Superior in location to anthers. Color: Greyed-Yellow Group161 C. Styles: Color: Green-White Group 157D. Length: 2-3 mm.

GROWTH

[0114] Vegetation: Dense

[0115] Blooming: Abundant.

[0116] Aptitude to bear fruit: Poor.

[0117] Resistance to diseases: Above average resistance to mildew andBotrytis under normal growing conditions in Fraugde, Denmark and SantaBarbara, Calif.

[0118] Hips/seeds: Unknown, the plant has never been grown to the stageof seed development due to the fact that the variety is developed foruse as a flowering potted plant only.

[0119] Winter hardiness and drought/heat tolerance: This variety is apotted flowering plant developed for one time use only and has not beentested for winter hardiness or drought/heat tolerance.

I claim:
 1. A new and distinct variety of rose plant substantially asshown and described.